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From: John Fastabend <john.fastabend@gmail.com>
To: Andy Gospodarek <andy@greyhouse.net>,
	Jesper Dangaard Brouer <brouer@redhat.com>
Cc: Daniel Borkmann <borkmann@iogearbox.net>,
	Alexei Starovoitov <alexei.starovoitov@gmail.com>,
	Alexei Starovoitov <ast@fb.com>,
	"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
	"xdp-newbies@vger.kernel.org" <xdp-newbies@vger.kernel.org>
Subject: Re: XDP question: best API for returning/setting egress port?
Date: Wed, 19 Apr 2017 21:43:53 -0700	[thread overview]
Message-ID: <58F83C89.4070808@gmail.com> (raw)
In-Reply-To: <20170419200259.GK4730@C02RW35GFVH8.dhcp.broadcom.net>

[...]

> JohnF, any test results with this you can share?  Presumably you tested with
> virtio-net, right?
> 

For my patches using the xdp_redirect with virtio-net showed no measurable
difference from running just the straight XDP_TX in the PPS column. However
virtio_net XDP_TX was quite low to start with (and I was mostly just looking
at functionality so I don't recall if there was a CPU usage hit) so I expect on
ixgbe to see a difference. However I have plenty of cpu overhead to consume on
the 10Gbps card so it will likely just be a CPU % cost not a PPS cost. I'll
bother Alex about the 40Gbps cards ;)

Anyways, I'll put it on my list to rerun. But like the xdp generic pieces it
wont be for a couple days until I get around to it. Sorry need to take care of
a few things first.

Thanks,
John

      parent reply	other threads:[~2017-04-20  4:44 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-18 19:58 XDP question: best API for returning/setting egress port? Jesper Dangaard Brouer
2017-04-18 20:54 ` John Fastabend
2017-04-19 12:00   ` Jesper Dangaard Brouer
2017-04-19 12:33     ` Daniel Borkmann
2017-04-19 15:24       ` Jesper Dangaard Brouer
2017-04-19 12:25 ` Hannes Frederic Sowa
2017-04-19 20:02 ` Andy Gospodarek
2017-04-19 21:42   ` Daniel Borkmann
2017-04-20 17:12     ` Andy Gospodarek
2017-04-19 22:51   ` Daniel Borkmann
2017-04-20  2:56     ` xdp_redirect ifindex vs port. Was: " Alexei Starovoitov
2017-04-20  4:38       ` John Fastabend
2017-04-20  4:58         ` Alexei Starovoitov
2017-04-20  5:14           ` John Fastabend
2017-04-20  6:10       ` Jesper Dangaard Brouer
2017-04-20 17:10         ` Alexei Starovoitov
2017-04-25  9:34           ` Jesper Dangaard Brouer
2017-04-26  0:26             ` Alexei Starovoitov
2017-04-26  3:07               ` John Fastabend
2017-04-26  9:11                 ` Jesper Dangaard Brouer
2017-04-26 16:35                   ` John Fastabend
2017-04-26 17:58                     ` Alexei Starovoitov
2017-04-26 20:55                       ` Andy Gospodarek
2017-04-27  8:41                         ` Jesper Dangaard Brouer
2017-04-27 23:31                           ` Alexei Starovoitov
2017-04-28  5:06                             ` John Fastabend
2017-04-28  5:30                               ` Alexei Starovoitov
2017-04-28 19:43                                 ` Hannes Frederic Sowa
2017-04-30  1:35                                   ` Alexei Starovoitov
2017-04-28 10:58                             ` Jesper Dangaard Brouer
2017-04-30  1:04                               ` Alexei Starovoitov
2017-04-30 22:55                                 ` John Fastabend
2017-04-20  6:39     ` XDP question: " Jesper Dangaard Brouer
2017-04-20  4:43   ` John Fastabend [this message]

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